Methane
- Formula: CH4
- Molecular weight: 16.0425
- IUPAC Standard InChI: InChI=1S/CH4/h1H4
- IUPAC Standard InChIKey: VNWKTOKETHGBQD-UHFFFAOYSA-N
- CAS Registry Number: 74-82-8
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Marsh gas; Methyl hydride; CH4; Fire Damp; R 50; Biogas; R 50 (refrigerant)
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Triple point pressure
Go To: Top, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
| Ptriple (bar) | Reference | Comment |
|---|---|---|
| 0.1169 | Friend, Ely, et al., 1989 | Uncertainty assigned by TRC = 0.00002 bar; TRC |
| 0.1174 | Younglove and Ely, 1987 | Uncertainty assigned by TRC = 0.0001 bar; TRC |
| 0.1169 | Pavese, Cagna, et al., 1976 | Uncertainty assigned by TRC = 0.00004 bar; TRC |
| 0.1168 | Kidnay, Lewis, et al., 1975 | Uncertainty assigned by TRC = 0.0006 bar; TRC |
| 0.1174 | Goodwin, 1974 | TRC |
| 0.1174 | Prydz and Goodwin, 1972 | Uncertainty assigned by TRC = 0.0004 bar; TRC |
| 0.1169 | Calado and Staveley, 1971 | Uncertainty assigned by TRC = 0.00004 bar; TRC |
| 0.1165 | Goodwin, 1970 | Uncertainty assigned by TRC = 0.005 bar; TRC |
| 0.1166 | Klipping and Schmidt, 1965 | Uncertainty assigned by TRC = 0.0002 bar; TRC |
| 0.1167 | Thomaes and Van Steenwinkel, 1962 | Uncertainty assigned by TRC = 0.000067 bar; TRC |
| 0.1168 | Ziegler, Mullins, et al., 1962 | Uncertainty assigned by TRC = 0.0001 bar; TRC |
| 0.1169 | Clusius, Piesbergen, et al., 1959 | Uncertainty assigned by TRC = 0.000067 bar; TRC |
| 0.1171 | Mathot, Staveley, et al., 1956 | Uncertainty assigned by TRC = 0.000067 bar; TRC |
| 0.1166 | Armstrong, Brickwedde, et al., 1955 | Uncertainty assigned by TRC = 0.0001 bar; TRC |
| 0.1171 | Mathot, Staveley, et al., 1955 | Uncertainty assigned by TRC = 0.000067 bar; TRC |
| 0.1167 | Armstrong, Brickwedde, et al., 1953 | Uncertainty assigned by TRC = 0.0002 bar; TRC |
| 0.1165 | Clusius and Popp, 1940 | TRC |
| 0.1168 | Freeth and Verschoyle, 1931 | Uncertainty assigned by TRC = 0.0001 bar; TRC |
| 0.1174 | Freeth and Verschoyle, 1931 | Uncertainty assigned by TRC = 0.0001 bar; TRC |
| 0.1163 | Eucken and Karwat, 1924 | Uncertainty assigned by TRC = 0.0013 bar; TRC |
| 0.093 | Crommelin, 1912 | Uncertainty assigned by TRC = 0.0026 bar; TRC; Data excluded from overall average |
| 0.1226 | Hunter, 1906 | Uncertainty assigned by TRC = 0.0026 bar; TRC; Data excluded from overall average |
| 0.1066 | Olszewski, 1885 | TRC; Data excluded from overall average |
References
Go To: Top, Triple point pressure, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Friend, Ely, et al., 1989
Friend, D.G.; Ely, J.F.; Ingham, H.,
Thermophysical Properties of Methane,
J. Phys. Chem. Ref. Data, 1989, 18, 2, 583-638, https://doi.org/10.1063/1.555828
. [all data]
Younglove and Ely, 1987
Younglove, B.A.; Ely, J.F.,
Thermophysical Properties of Fluids II. Methane, Ethane, Propane, Isobutane, and Normal Butane,
J. Phys. Chem. Ref. Data, 1987, 16, 577. [all data]
Pavese, Cagna, et al., 1976
Pavese, F.; Cagna, G.; Ferri, D.,
The Triple Point of Pure Methane
in Proc. Int. Cryog. Eng. Conf. 6, 1976. [all data]
Kidnay, Lewis, et al., 1975
Kidnay, A.J.; Lewis, K.L.; Calado, J.C.G.; Staveley, L.A.K.,
The thermodynamics of liquid mixtures of argon + methane,
J. Chem. Thermodyn., 1975, 7, 847-54. [all data]
Goodwin, 1974
Goodwin, R.D.,
The Thermodynamic Properties of Methane, from 90 to 500K at Pressures to 700 Bar, NBS Tech. Note (U. S.) No. 653, 1974. [all data]
Prydz and Goodwin, 1972
Prydz, R.; Goodwin, R.D.,
Experimental Melting and Vapor Pressures of Methane,
J. Chem. Thermodyn., 1972, 4, 127-33. [all data]
Calado and Staveley, 1971
Calado, J.C.G.; Staveley, L.A.K.,
Thermodynamics of liquid mixtures of krypton and methane,
Trans. Faraday Soc., 1971, 67, 1261. [all data]
Goodwin, 1970
Goodwin, R.D.,
Thermophysical properties of methane: virial coefficients, vapor and melting pressures,
J. Res. Natl. Bur. Stand., Sect. A, 1970, 74, 655. [all data]
Klipping and Schmidt, 1965
Klipping, G.; Schmidt, F.,
Temperature Measurement with the Vapor Pressure Thermometer,
Kaeltetechnik, 1965, 17, 382-4. [all data]
Thomaes and Van Steenwinkel, 1962
Thomaes, G.; Van Steenwinkel, R.,
The difference between the second virial coefficients of isotopic methanes at low temperatures,
Mol. Phys., 1962, 5, 307-11. [all data]
Ziegler, Mullins, et al., 1962
Ziegler, W.T.; Mullins, J.C.; Kirk, B.S.,
Calculation of the Vapor Pressure and Heats of Vaporization and Sublimation of Liquids and Solids, Especially Below One Atmosphere Pressure. II. Argon, Ga. Inst. Technol., Eng. Exp. Stn., Proj. A-460, Tech. Rep. No. 2, 1962. [all data]
Clusius, Piesbergen, et al., 1959
Clusius, K.; Piesbergen, U.; Varde, E.,
Results of low temperature research: xxviii the fusion curves of nitrogen to 250 atmospheres and of nitrogen monoxide to 75 atmospheres,
Helv. Chim. Acta, 1959, 42, 2356-64. [all data]
Mathot, Staveley, et al., 1956
Mathot, V.; Staveley, L.A.K.; Young, J.A.; Parsonage, N.G.,
Thermodynamic properties of the system methane + carbon monoxide at 90.67 K,
Trans. Faraday Soc., 1956, 52, 1488-500. [all data]
Armstrong, Brickwedde, et al., 1955
Armstrong, George T.; Brickwedde, F.G.; Scott, R.B.,
Vapor pressures of the methanes,
J. RES. NATL. BUR. STAN., 1955, 55, 1, 39, https://doi.org/10.6028/jres.055.005
. [all data]
Mathot, Staveley, et al., 1955
Mathot, V.; Staveley, L.A.K.; Young, J.A.; Parsonage, N.G.,
Thermodynamic properties of the system methane-carbon monoxide at 90 K,
J. Chem. Phys., 1955, 23, 1551. [all data]
Armstrong, Brickwedde, et al., 1953
Armstrong, G.T.; Brickwedde, F.G.; Scott, R.B.,
The Vapor Pressure of the Deuteromethanes,
J. Chem. Phys., 1953, 21, 1297. [all data]
Clusius and Popp, 1940
Clusius, K.; Popp, L.,
The molar heats, melting heats and heats of transformation of the condensed gases cd(4) and ch(3)d,
Z. Phys. Chem., Abt. B, 1940, 46, 63. [all data]
Freeth and Verschoyle, 1931
Freeth, F.A.; Verschoyle, T.T.H.,
Physical Constants of the System Methane-Hydrogen,
Proc. R. Soc. London, A, 1931, 130, 453. [all data]
Eucken and Karwat, 1924
Eucken, A.; Karwat, E.,
Determination of the heat content of several condensed gases,
Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1924, 112, 467. [all data]
Crommelin, 1912
Crommelin, C.-A.,
On the triple point of methane,
Proc. K. Ned. Akad. Wet., 1912, 15, 666. [all data]
Hunter, 1906
Hunter, M.A.,
The Molecular Aggregation of Liquified Gases,
J. Phys. Chem., 1906, 10, 330-60. [all data]
Olszewski, 1885
Olszewski, K.,
Liquefaction and solidification of methane and nitrogen dioxide.,
C. R. Hebd. Seances Acad. Sci., 1885, 100, 940-3. [all data]
Notes
Go To: Top, Triple point pressure, References
- Symbols used in this document:
Ptriple Triple point pressure - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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